Type:
Priority:
Resolution:
Fixed
Affects Version/s:
10.5 , 10.6 , 10.7(EOL) , 10.8(EOL) , 10.9(EOL) , 10.10(EOL) , 10.11 , 11.0(EOL) , 11.1(EOL)
For I/O intensive workloads, the mutexes protecting read_slots and write_slots could potentially become congestion points. This has been under the radar, because there is no PERFORMANCE_SCHEMA instrumentation for them.
Let us add wait/synch/mutex/innodb/tpool_cache_mutex for tracking them.
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Bug
Major
MDEV-16264 Implement a common work queue for InnoDB background tasks
